We were all forced to learn about pH in chemistry class, and it was something many of us quickly forgot after the test was over. Well, pH may not have been exciting in school, but it is in the beauty world, especially when it comes to color-adjusting beauty products.

Products that look one way in the tube, but transform into a completely different shade when they’re applied actually utilize the magic of pH. What’s more, the best self-adjusting products don’t simply change color; they adjust to create a flattering shade based on a person’s unique body chemistry. There’s no need to mix or blend custom colors. Just apply and let your body determine your perfect shade instantly.

Ready to see what all the fuss is about? Read on for some of the best pH and color-adjusting makeup and beauty products to try now.